=310 Statistics.= 311 Methods. 312 Progress of population. 313 Progress of civilization. 314 Europe. 315 Asia. 316 Africa. 317 North America. 318 South America. 319 Oceanica.
=320 Political Science.= 321 Patriarchal Institutions. 322 Feudal Institutions. 323 Monarchic Institutions. 324 Republican Institutions. 325 Colonies and Emigration. 326 Slavery. 327 Foreign and Domestic relations. 328 Legislative annals. 329 Political essays and speeches.
=330 Political Economy.= 331 Capital and labor. 332 Banks and money. 333 Stocks, rents, and income. 334 Credit and interest. 335 Communism. 336 Public funds and taxation. 337 Protection and free trade. 338 Production. 339 Pauperism.
=340 Law.= 341 International. 342 Constitutional and administrative. 343 Statute and common. 344 Equity. 345 Criminal. 346 Maritime. 347 Martial. 348 Civil and Canon. 349 Evidence and Forms of practice.
=350 Administration.= 351 Civil Service. 352 Treasury. 353 Interior. 354 Police. 355 Army. 356 Infantry. 357 Cavalry. 358 Artillery. 359 Navy.
=360 Associations and Institutions.= 361 Charitable. 362 Religious. 363 Political. 364 Reformatory and Sanitary. 365 Prisons. 366 Secret Societies. 367 Trades Unions. 368 Insurance. 369 Other.
=370 Education.= 371 Teachers, methods, and discipline. 372 Elementary. 373 Higher. 374 Self-education. 375 Classical and real. 376 Female. 377 Religious and secular. 378 Schools and Colleges. 379 Reports.
=380 Commerce, Communication.= 381 Domestic trade. 382 Foreign trade. 383 Post office. 384 Telegraph. 385 Railroad and express. 386 Canal transportation. 387 River and ocean transportation. 388 City transit. 389 Weights and measures.
=390 Customs and Costumes. 391 Ancient. 392 Medieval. 393 Modern. 394 Europe. 395 Asia. 396 Africa. 397 North America. 398 South America. 399 Oceanica.
PHILOLOGY.
=400 Philology.= 401 Philosophy. 402 Compends. 403 Dictionaries. 404 Essays. 405 Periodicals. 406 Societies. 407 Education. 408 Universal Language. 409 History.
=410 Comparative.= 411 Orthography. 412 Etymology. 413 Dictionaries. 414 Phonology. 415 Grammar. 416 Prosody. 417 Inscriptions. 418 Texts. 419 Hieroglyphics.
=420 English.= 421 Orthography. 422 Etymology. 423 Dictionaries. 424 Synonyms. 425 Grammar. 426 Prosody. 427 Dialects. 428 Texts. 429 Anglo-Saxon.
=430 German.= 431 Orthography. 432 Etymology. 433 Dictionaries. 434 Synonyms. 435 Grammar. 436 Prosody. 437 Dialects. 438 Texts. 439 Dutch and Low German.
=440 French.= 441 Orthography. 442 Etymology. 443 Dictionaries. 444 Synonyms. 445 Grammar. 446 Prosody. 447 Dialects. 448 Texts. 449 Old French, Provencal.